<ul><li>AMSI is Microsoft's security feature that scans and blocks suspicious PowerShell scripts.</li><li>A new technique patches AMSI functions in memory to make the scanner return an error code and allow code execution.</li><li>The tool locates the PowerShell process, calculates the memory addresses of critical AMSI functions, and writes a small assembly code patch to bypass scanning.</li><li>This technique disables AMSI's scanning capability directly at its source and allows PowerShell code execution without triggering security alerts.</li></ul>

AMSI Patching Evasion

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